Bathtub overflow pipe



FIG. 1 is a perspective view of the bathtub overflow pipe showing thenew design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right elevation view thereof, the left elevation view beinga mirror image thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the figures show environment for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for a bathtub overflow pipe, as shown anddescribed.